Danfoss District Energy
DSA 1 MINI -
12 DEN-SMT/PL
VM.HE.B2.02
Danfoss District Energy
Wiring diagram
9.1.2 Danfoss Controller OPR 0020 Wiring diagram
OPR 0020 Factory-setting:
Circuit 1: Heating circuit, radiators or high temperatures (fans)
Circuit 2: Mixing circuit for radiators
Circuit 3: Mixing circuit for under floor heating
Circuit 4: Boiler
Pump 1 Heating
circuit 1 or boiler 2
N L
Motor 1 Mix Heating
A = Off
Z = On
Pump 2 heating
circuit 2
Pump 3 Heating
circuit 3
Pump 4 heating circuit 4
or boilerpump boiler 1
N L
N Z A
N L
N L
N L
N Z A
N Z A
N Z A
Motor 2 Mix Heating
A = Off
Z = On
Motor 3 Mix Heating
A = Off
Z = On
Motor 3 Mix Heating
ZU = ON; Domestic hot water pump
Boiler 1 for chargingmodule
AUF = Off,
N L
N L
Supply heat meter 230VAC
(Is NOT powered via the glass fuse)
Glass tube fuse 3.15A
Mains 230VAC
PE = Protecting earth
N = Null
L = phase
K3
K4
K5
K6
K7
K8
K9
K10
K3
Rel1
Rel3
Rel4
Rel5
Rel6
Rel7
Rel8
Rel9
Rel10
Rel11
Rel12
Rel2
F4
XL1
BAT1
Controller reset
Lon-reset
Lon-service
XL4
Connection for
Communication
LON, TCP/IP or GPRS
K3
K3
K3
K3
K3
K3
K3
K3
K3
K3
K3
K3
K3
AB LonBus IN
AB LonBus OUT
FB; Remote control - 2pole shielded
(max. 4 pc)
XL19
XL3
XL2
K1
K2
Seriel connector
BB AA
DISP; Display (max 2 pc/on FB)
MB; Mbus - Heat meter (2pole shielded)
AT; Outdoor temperature sensor
RL; Return temperature sensor
VL1; Secondary Supply temperature
sensor
VL2; Supply temperature sensor 2.
circuit
VL3; Supply temperature sensor 3.
circuit
BO1; Boiler sensor Boiler 1 top, or
supply temp. circuit 4
PE; Pe for cable shield
BO2; Boiler sensor Boiler 2 bottom,
or potintial free relay
Ok; OUT open collector output
Ok; OUT open collector output
OK4
OK3
12V
OK2
OK1
12V
TR1
1
2
Jumper
Reserve
3
4
Adress
Nopro Cemote control
4-20mA
0-10V jumper
4-20mA
0-10V
GND
Controller
B02 +
Controller
B02 -
Use Jumpers to address heating circuit
(Visible on circuit board)
Note:
Do not connect temperature sensors to other connectors than the intended.
Use only PT 1000 temperature sensors. Use only shielded wires for the communication
cabels. Ensure correct po and - for the display and remote control.
Do not connect other secondary modules than Nopro modules
Nopro expansion
module
XL1